/Engine/Source/Editor/MovieSceneTools/Public/KeyframeTrackEditor.h
Adds keys to the specified object. This may also add tracks and sections depending on the options specified.
Whether or not a handle guid or track was created. Note this does not return true if keys were added or modified.
[FKeyPropertyResult](API\Editor\Sequencer\FKeyPropertyResult) AddKeysToObjects ( [TArrayView](API\Runtime\Core\Containers\TArrayView)< [UObject](API\Runtime\CoreUObject\UObject\UObject) *const > ObjectsToKey, [FFrameNumber](API\Runtime\Core\Misc\FFrameNumber) KeyTime, ESequencerKeyMode KeyMode, [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [UMovieSceneTrack](API\Runtime\MovieScene\UMovieSceneTrack) > TrackClass, [FName](API\Runtime\Core\UObject\FName) PropertyName, [TFunction](API\Runtime\Core\GenericPlatform\TFunction)< void(TrackType *)> OnInitializeNewTrack, const [GenerateKeysCallback](API\Editor\MovieSceneTools\FKeyframeTrackEditor\GenerateKeysCallback) & OnGenerateKeys )